@Override
  public void start() {
    this.getGroupContextManager().log(LOG_NAME, this.getContextType() + " Provider Started");

    if (!gcm.getBluewaveManager().isScanning()) {
      startedScan = true;
    }

    gcm.getBluewaveManager().startScan(scanInterval);

    context.registerReceiver(intentReceiver, filter);
  }
 @Override
 public void sendContext() {
   sendContext(
       this.getSubscriptionDeviceIDs(),
       new String[] {
         "DEVICES="
             + new Gson().toJson(gcm.getBluewaveManager().getNearbyDevices(getRefreshRate()))
       });
 }